Answer:
Step-by-step explanation:
let : y = x² + 16
calculate : x
x² = y - 16
x exist : y -16 ≥ 0
x = √(y - 16) or x = - √(y - 16 )
conclusion :
if : x ≥ 0 the inverse of f(x) is : g(x) = √(x - 16)
if : x ≤ 0 the inverse of f(x) is : h(x) = - √(x - 16)
